Type Li-ion Voltage 52 Wh ( 3400 mAh ) / 3500 mAh Capacity 14.8 V Size 205.50 x 121.00 x 7.00 mm Color Black Compatible Part Numbers: HP: EL04, EL04XL, ELO4XL, TPN-C102, HSTNN-IB3R, 681879-1C1, 681949-001, HSTNN-UB3R, 681879-171, 681879-541 Compatible Laptop : HP ENVY 4-1000 SERIES HP ENVY PRO ULTRABOOK 4 HP ENVY 4 SLEEKBOOK PC 4-1005XX HP ENVY 4 SLEEKBOOK PC 4-1043CL HP ENVY 4 SLEEKBOOK 4-1000 SERIES HP ENVY 4 SLEEKBOOK 4T-1000 SERIES HP ENVY TOUCHSMART 4-1000 SERIES HP ENVY TOUCHSMART 4T-1000 SERIES HP ENVY ULTRABOOK 4-1000 SERIES